(2009). Asterisk Gateway Interface 1.4 and 1.6 programming design and develop Asterisk-based VoIP telephony platforms and services using PHP and PHPAG / Nir Simionovich. [electronic resource].
Chicago-čujuhus (17. p.)Asterisk Gateway Interface 1.4 and 1.6 Programming Design and Develop Asterisk-based VoIP Telephony Platforms and Services Using PHP and PHPAG / Nir Simionovich. [electronic Resource]. 2009.
MLA-čujuhus (9. p.)Asterisk Gateway Interface 1.4 and 1.6 Programming Design and Develop Asterisk-based VoIP Telephony Platforms and Services Using PHP and PHPAG / Nir Simionovich. [electronic Resource]. 2009.
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